PR 66685: parallel returns being misclassified

[Richard Sandiford <richard.sandiford@arm.com>]

This patch should restore bootstrap on hppa (and probably other targets
besides).  The change to use target-insns.def put more stress on the
emit()/classify_insn() group of functions, which were missing a case
for parallel returns.

Tested with a cross-compiler that it fixes the hppa problem.  Bootstrap
in progress on x86_64-linux-gnu.  OK to install?

Sorry for the slow response on this one.  I'd misread the PR and thought
that it was the bug fixed in r225000.

Thanks,
Richard


gcc/
	PR bootstrap/66685
	* rtl.c (classify_insn): Handle returns in PARALLELs.

Index: gcc/rtl.c
===================================================================
--- gcc/rtl.c	2015-07-01 09:13:29.782160299 +0100
+++ gcc/rtl.c	2015-07-01 09:13:29.778160333 +0100
@@ -686,6 +686,8 @@ classify_insn (rtx x)
       for (j = XVECLEN (x, 0) - 1; j >= 0; j--)
 	if (GET_CODE (XVECEXP (x, 0, j)) == CALL)
 	  return CALL_INSN;
+	else if (ANY_RETURN_P (XVECEXP (x, 0, j)))
+	  return JUMP_INSN;
 	else if (GET_CODE (XVECEXP (x, 0, j)) == SET
 		 && GET_CODE (SET_DEST (XVECEXP (x, 0, j))) == PC)
 	  return JUMP_INSN;